Compositions and methods for treating diverticulitis and related disorders

ABSTRACT

The present disclosure is in the field of pharmaceutical compositions suitable for the treatment of diseases in mammals. The disclosure provides novel compositions comprising non-pathogenic fecal microbes for treating recurrent diverticulitis and related diseases. The disclosure also provides methods for treating a subject with the compositions disclosed herein.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Application No. 62/482,159, filed Apr. 5, 2017. The U.S. Provisional Application is incorporated by reference herein in its entirety.

FIELD

The present disclosure relates to pharmaceutical compositions and methods suitable for treating gastrointestinal (GI) disorders, such as recurrent diverticulitis.

BACKGROUND

Mammals harbor diverse microbial species in their gastrointestinal (GI) tracts. Interactions between these microbes and between microbes and the host, e.g. the host immune system, shape a microbiota. A healthy microbiota provides the host with multiple benefits, including colonization resistance to a broad spectrum of pathogens, essential nutrient biosynthesis and absorption, and immune stimulation that maintains a healthy gut epithelium and an appropriately controlled systemic immunity. An unbalanced microbiota (also called ‘dysbiosis’ or disrupted symbiosis) may lose its function and result in increased susceptibility to pathogens, altered metabolic profiles, or induction of proinflammatory signals that can lead to local or systemic inflammation or autoimmunity. Additionally, such a disrupted microbiota may be infected by incoming pathogen or pathogens, which can cause pain, diarrhea, gas, constipation among other symptoms. Hence. the intestinal microbiota plays a significant role in the pathogenesis of many disorders such as pathogenic infections of the gut.

Implantation or administration of human colonic microbiota into the bowel of a sick patient is called Fecal Microbiota Transplantation (FMT), also commonly known as fecal bacteriotherapy. FMT is believed to repopulate the gut with a diverse array of microbes that control key pathogens by creating an ecological environment inimical to their proliferation and survival. It represents a therapeutic protocol that allows a fast reconstitution of a normal compositional and functional gut microbial community.

FMT has been used to treat Clostridium difficile infection (CDI). FMT has also been suggested in treating other gut infective agents such as E. coli and Vancomycin resistant Enterococci (VRE). It entails infusions through a colonoscope, an enema or via a nasojejunal tube of human microbiota either in the form of homogenised stool, or cultured stool components such as Clostridia, to implant in the colon and thereby displace or eradicate pathogenic bacteria, e.g., C. difficile.

Diverticular disease includes a spectrum of conditions ranging from asymptomatic diverticular disease, to symptomatic uncomplicated diverticular disease, and complicated diverticular disease that includes acute and chronic diverticulitis. Diverticulitis is defined as an inflammation of one or more diverticula, which are small pouches created by herniation of the mucosa into the wall of the colon. Diverticulitis patients typically present with symptoms of pain of the lower left quadrant, fever, nausea and vomiting, or abnormal bowel habits (constipation or diarrhea). Complicated diverticulitis may also be associated abscess, phlegmon, fistula, stricture, stenosis, obstruction, bleeding, or perforation.

Diverticulitis is generally considered a disease of the elderly, but as many as 20% of patients with diverticulitis are younger than 50 years. Diverticulitis becomes more common after the age of 40, with risk continuing to increase with age. Certain drugs such as ibuprofen, naproxen, steroids, and opiates can increase diverticulitis risk. In its chronic form, patients may have recurrent bouts of low-grade or overt diverticulitis. In the United States, there are more than 200,000 cases of Diverticulitis per year.

More information on diverticulosis and diverticulitis can be found in the following references: Klarenbeek et al., Int J Colorectal Dis (2012) 27:207-14; Tursi, Ther Adv Chronic Dis. (2013) 4(6): 277-86; Tursi et al., Aliment Pharmacol Ther (2013) 38: 741-751; Andeweg et al., Dig Surg (2013) 30:278-92; Tan et al., International Journal of Surgery (2016) 26:43-52.

Current attempts for treating relapsing diverticulitis can range from maintaining a high-fiber diet, rest and antibiotics, for mild cases to surgery for severe and recurring (relapsing) diverticulitis. There is a need for more effective treatments for recurrent diverticulitis that are easier to administer.

SUMMARY

The present disclosure provides compositions, methods, and dosing regimens for treating or preventing recurrent diverticulitis.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering to the subject a pharmaceutically active dose of a therapeutic composition comprising or derived from live non-pathogenic fecal bacteria or a sterile fecal filtrate. In one aspect, a sterile fecal filtrate originates from a donor stool. In another aspect, a sterile fecal filtrate originates from cultured microorganisms.

In another aspect, this disclosure provides use of a composition comprising live non-pathogenic fecal bacteria in the manufacture of a medication for the treatment of recurrent diverticulitis.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering orally to the subject a pharmaceutically active dose of a therapeutic composition comprising live, non-pathogenic, synthetic bacterial mixture or live, non-pathogenic, purified or extracted, fecal microbiota, where the dose is administered at a dosing schedule of at least once or twice daily or at least once or twice weekly for at least three, eight, ten, or twenty consecutive weeks.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering orally to the subject a pharmaceutically active dose of a therapeutic composition comprising a liquid, frozen, lyophilized, or encapsulated sterile fecal filtrate, where the dose is administered at a dosing schedule of at least once or twice daily or at least once or twice weekly for at least three, eight, ten, or twenty consecutive weeks.

In one aspect, a method achieves a remission, cure, response, or resolution rate of recurrent diverticulitis of at least about 80%.

In an aspect, a fecal microbiota in a therapeutic composition comprises a donor's substantially entire and non-selected fecal microbiota, reconstituted fecal material, synthetic fecal material.

DETAILED DESCRIPTION

Unless defined otherwise herein, terms are to be understood according to conventional usage by those of ordinary skill in the relevant art.

As used herein, the term “treating” refers to (i) completely or partially inhibiting a disease, disorder or condition, for example, arresting its development; (ii) completely or partially relieving a disease, disorder or condition, for example, causing regression of the disease, disorder and/or condition; or (iii) completely or partially preventing a disease, disorder or condition from occurring in a patient that may be predisposed to the disease, disorder and/or condition, but has not yet been diagnosed as having it. Similarly, “treatment” refers to both therapeutic treatment and prophylactic or preventative measures.

As used herein, “therapeutically effective amount” or “pharmaceutically active dose” refers to an amount of a composition which is effective in treating the named disease, disorder or condition.

As used herein, “microbiota,” and “flora” refer to a community of microbes that live in or on a subject's body, both sustainably and transiently, including eukaryotes, archaea, bacteria, and viruses (including bacterial viruses (i.e., phage)). A non-selected fecal microbiota refers to a community or mixture of fecal microbes derived from a donor's fecal sample without selection and substantially resembling microbial constituents and population structure found in such fecal sample.

As used herein, a “sterile fecal filtrate” or a “non-cellular fecal filtrate” refers to a liquid component of a fecal material, where the liquid component is free or substantially free of cell-based living organisms (e.g., bacteria, fungi, or their spores), but retains bacteriophages and non-cellular biological materials. Preferably, a non-cellular or sterile fecal filtrate is also free of viruses for eukaryotic host cells.

As used herein, “remission, cure, or resolution rate” refers to the percentage of patients that are cured or obtain remission or complete resolution of a condition in response to a given treatment. Remission, cure, or resolution of recurrent diverticulitis refers to complete cessation of one or more symptoms that a patient manifests prior to receiving a treatment described here. Such symptoms can include, but are not limited to left lower quadrant pain, abnormal bowel habits, nausea, vomiting, constipation, diarrhea, flatulence, bloating, abscess, phlegmon, fistula, stricture, stenosis, obstruction, bleeding, and perforation. Remission, cure, or resolution can be further confirmed by endoscopic and mucosal healing.

As used herein, “response rate” refers to the percentage of patients that respond positively (e.g., reduced severity or frequency of one or more symptoms) to a given treatment.

As used herein, “eukaryotic” refers to belonging to a cell that contains a nucleus and membrane-bound organelles.

As used herein, “bacteria,” “bacterium,” and “archaea” refer to single-celled prokaryotes that lack membrane bound nuclei and lack organelles.

As used herein, “colony forming units” (cfu) refers to an estimate of the number of viable microorganism cells in a given sample.

As used herein, “viable” means possessing the ability to multiply.

As used herein, “fecal bacteria” refers to bacteria that can be found in fecal matter.

As used herein, “isolated” or “purified” refers to a bacterium or other entity or substance that has been (1) separated from at least some of the components with which it was associated when initially produced (whether in nature or in an experimental setting), and/or (2) produced, prepared, purified, and/or manufactured by the hand of man. Isolated or purified bacteria can be separated from at least about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, about 90%, or more of the other components with which they were initially associated.

As used herein, “cytotoxic” activity or bacterium includes the ability to kill a bacterial cell, such as a pathogenic bacterial cell. A “cytostatic” activity or bacterium includes the ability to inhibit, partially or fully, growth, metabolism, and/or proliferation of a bacterial cell, such as a pathogenic bacterial cell.

As used herein, the terms “pathogen” and “pathogenic” in reference to a bacterium or any other organism or entity includes any such organism or entity that is capable of causing or affecting a disease, disorder or condition of a host organism containing the organism or entity.

As used herein, “spore” or a population of “spores” includes bacteria (or other single-celled organisms) that are generally viable, more resistant to environmental influences such as heat and bacteriocidal agents than vegetative forms of the same bacteria, and typically capable of germination and out-growth. “Spore-formers” or bacteria “capable of forming spores” are those bacteria containing the genes and other necessary abilities to produce spores under suitable environmental conditions.

As used herein, a “combination” of two or more bacteria includes the physical co-existence of the two bacteria, either in the same material or product or in physically connected products, as well as the temporal co-administration or co-localization of the two bacteria.

As used herein, “subject” refers to any animal subject including humans, laboratory animals (e.g., primates, rats, mice), livestock (e.g., cows, sheep, goats, pigs, turkeys, chickens), and household pets (e.g., dogs, cats, rodents, etc.). The subject or patient may be healthy, or may be suffering from an infection due to a gastrointestinal pathogen or may be at risk of developing or transmitting to others an infection due to a gastrointestinal pathogen.

As used herein, “Shannon Diversity Index” refers to a diversity index that accounts for abundance and evenness of species present in a given community using the formula

$H = {- {\sum\limits_{i = 1}^{R}{p_{i}\ln\; p_{i}}}}$ where H is Shannon Diversity Index, R is the total number of species in the community, and p_(i) is the proportion of R made up of the ith species. Higher values indicate diverse and equally distributed communities, and a value of 0 indicates only one species is present in a given community. For further reference, see Shannon and Weaver, (1949) The mathematical theory of communication. The University of Illinois Press, Urbana. 117 pp.

As used herein, “antibiotic” refers to a substance that is used to treat and/or prevent bacterial infection by killing bacteria, inhibiting the growth of bacteria, or reducing the viability of bacteria.

As used herein, an “intermittent dosing schedule” means that that a therapeutic composition is administered for a period of time followed by a period of time (a treatment period) where treatment with such therapeutic composition is withheld (a rest period). Intermittent dosing regimens can be expressed as treatment period in days or weeks/rest period in days or weeks. For example, a 4/1 intermittent dosing schedule refers to an intermittent dosing schedule where the treatment period is four weeks/days and the rest period is one week/day.

As used herein, a “continuous dosing schedule” refers to a dosing schedule where a therapeutic composition is administered during a treatment period without a rest period. Throughout the treatment period of a continuous dosing schedule, a therapeutic composition can be administered, for example, weekly, daily, or every other day, or every third day. On a day when a therapeutic composition is administered, it can be administered in a single dose, or in multiple doses throughout the day.

As used herein, “dosing frequency” refers to the frequency of administering doses of a therapeutic composition in a given time. Dosing frequency can be indicated as the number of doses per a given time, for example, once per day, once a week, or once in two weeks.

As used herein, “dosing interval” refers to the amount of time that elapses between multiple doses being administered to a subject.

Diverticula are small mucosal herniations protruding through the intestinal layers and the smooth muscle along the natural openings created by the vasa recta or nutrient vessels in the wall of the colon. True diverticulae contain all layers of the gastrointestinal wall (mucosa, muscularis propria, and adventitia) (e.g., Meckel diverticulum). False diverticulae, or pseudo-diverticulae do not contain the muscular layers or adventitia, and they only involve the submucosa and mucosa. Diverticula can occur anywhere in the gastrointestinal tract but are usually observed in the colon. The sigmoid colon has the highest intraluminal pressures and is most commonly affected.

Diverticulae found in the left colon (predominantly in the sigmoid) are usually false diverticula, and they are commonly found in Western populations. Right-sided and cecal diverticulae, however, are more commonly true diverticulae, and they are usually found in people of Asian descent. Cecal diverticulae are generally rare compared to those found in the left colon.

Diverticulosis is defined as the condition of having uninflamed diverticula; it occurs commonly with increasing age. The cause of diverticulosis is not yet conclusive, but it appears to be associated with a low-fiber diet, constipation, and obesity.

Diverticulitis is defined as an inflammation of one or more diverticula. Its pathogenesis remains unclear. Fecal material or undigested food particles may collect in a diverticulum, causing obstruction. This obstruction may result in distension of the diverticula secondary to mucous secretion and overgrowth of normal colonic bacteria. Vascular compromise and subsequent microperforation or macroperforation then ensue. Alternatively, some believe that increased intraluminal pressure or inspissated food particles cause erosion of the diverticular wall, resulting in inflammation, focal necrosis, and perforation. The disease is frequently mild when pericolic fat and mesentery wall off a small perforation. However, larger perforations and more extensive disease lead to abscess formation and, rarely, intestinal rupture or peritonitis.

Fistula formation is a complication of diverticulitis. Fistulas to adjacent organs and the skin may develop, especially in the presence of an abscess. In men, colovesicular fistulas are the most common. In women, the uterus is interposed between the colon and the bladder, and this complication is only seen following a hysterectomy. The uterus precludes fistula formation from the sigmoid colon to the urinary bladder. However, colovaginal and colocutaneous fistulas can form but are uncommon.

Recurrent attacks of diverticulitis can result in the formation of scar tissue, leading to narrowing and obstruction of the colonic lumen. As used herein, recurrent diverticulitis, relapsing diverticulitits, or chronic diverticulitits are used interchangeably.

Many chronic diseases and disorders of the GI tract have chronic infection/infestation as their underlying pathological conditions (e.g., recurrent diverticulitis). In one aspect, the present disclosure includes and relates to the use of a fecal microbiota, one or more microbial species therefrom, an active fragment or component therefrom for the treatment and/or prophylaxis of various disease states (e.g., recurrent diverticulitis) related to the presence of ‘abnormal’ microflora in the GI tract. An active fragment of a bacterium can be any active molecule isolated from such bacteria by any known method for preparing/identifying active fragments of bacteria and proteins secreted from bacteria. Such methods include but are not limited to the following: sonication, osmotic shock, detergent lysis, high pressure, transfer appropriate DNA to other organisms, such as bacteria, plant or animal that is then used as a feed additive as described previously. In one aspect, an active fragment or component of a bacterium is selected from the group consisting of a mycolate or a derivative thereof, a polysaccharide, a lipoglycan, a small peptide, a thiopeptide, a protein, a nucleic acid molecule, a metabolite, a cell wall component, or any combination thereof. In one aspect, an active fragment is a protein or a secretion. In another aspect, an active fragment is a secreted protein.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering to the subject a pharmaceutically active dose of a therapeutic composition comprising live non-pathogenic fecal bacteria. In another aspect, this disclosure provides use of a composition comprising live non-pathogenic fecal bacteria in the manufacture of a medication for the treatment of recurrent diverticulitis.

In one aspect, a method provided here is for treating a form of diverticulitis selected from the group consisting of acute diverticulitis and recurrent diverticulitis. In one aspect, a therapeutic composition comprises an isolated or purified population of live non-pathogenic fecal bacteria. In one aspect, a therapeutic composition comprises a non-selected fecal microbiota. In another aspect, a therapeutic composition comprises a non-selected and substantially complete fecal microbiota. In another aspect, a therapeutic composition comprises a full-spectrum fecal microbiota. In one aspect, a method further comprises administering a 5-aminosalicylic acid agent, a corticosteroid, an immunosuppressant, or a combination thereof. In another aspect, a method further comprises administering 5-aminosalicylic acid or a derivative thereof, sulfasalazine or a derivative thereof, or a combination thereof.

In one aspect, the present disclosure provides a method which eliminates or reduces one or more recurrent diverticulitis symptoms selected from the group consisting of left lower quadrant pain, change in bowel habits, nausea, vomiting, constipation, diarrhea, flatulence, and bloating. In another aspect, the present disclosure provides a method which eliminates, improves, relieves, or reduces one or more recurrent diverticulitis symptoms selected from the group consisting of abscess, phlegmon, fistula, stricture, stenosis, obstruction, bleeding, and perforation.

In one aspect, a patient treated here stays on a high fiber diet. In another aspect, a patient treated here does not need to maintain a high fiber diet. In a further aspect, a patient treated here can achieve a cure without a high fiber diet. In one aspect, a patient treated here stays on an anti-inflammatory agent or drug. In another aspect, a patient treated here is capable of discontinuing an anti-inflammatory agent or drug. In a further aspect, a patient treated here achieves a remission or cure free of using any anti-inflammatory agent or drug.

In one aspect, a patient treated here stays on a clear liquid diet for at least 1, 2, 3, 4, 5, 6, or 7 days. In another aspect, a patient treated here does not need to undergo a clear liquid diet. In a further aspect, a patient treated here can achieve a cure without a clear liquid diet.

In one aspect, a patient treated here is pretreated with 7-10 days of oral broad-spectrum antimicrobial therapy. In one aspect, a single-agent antibiotic regimen is used. In another aspect, a multiple-agent antibiotic regimen is used. Exemplary antibiotic regimens include the following: (a) ciprofloxacin and metronidazole; (b) trimethoprim-sulfamethoxazole and metronidazole; (c) moxifloxacin, (d) amoxicillin/clavulanic acid. Further exemplary antibiotics include piperacillin/tazobactam, ampicillin/sulbactam, ticarcillin/clavulanic acid, imipenem, meropenem, tigecycline (when severe penicillin allergy is a concern). In another aspect, a multiple-drug regimen may consist of metronidazole and a third-generation cephalosporin or a fluoroquinolone, such as the following: Ceftriaxone, Cefotaxime, Ciprofloxacin, and Levofloxacin.

In one aspect, a patient subject to a treatment method described here comprises one or more surgical indications selected from the group consisting of free-air perforation with fecal peritonitis, suppurative peritonitis secondary to a ruptured abscess, uncontrolled sepsis, abdominal or pelvic abscess, fistula formation, inability to rule out carcinoma, and intestinal obstruction.

In one aspect, a patient subject to a treatment method described here does not exhibit one or more surgical indications selected from the group consisting of free-air perforation with fecal peritonitis, suppurative peritonitis secondary to a ruptured abscess, uncontrolled sepsis, abdominal or pelvic abscess, fistula formation, inability to rule out carcinoma, and intestinal obstruction.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering to the subject a pharmaceutically active dose of a therapeutic composition comprising live non-pathogenic bacteria. In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering daily or weekly to the subject a pharmaceutically active dose of a therapeutic composition comprising live non-pathogenic fecal bacteria. In one aspect, a therapeutic composition is administered to an recurrent diverticulitis patient in need thereof at least once daily or at least once weekly for at least two consecutive days or weeks. In one aspect, a therapeutic composition is administered at least once daily or at least once weekly for at least 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least once daily or at least once weekly for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks. In one aspect, a therapeutic composition is administered at least once daily or at least once weekly for at most 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least once daily or at least once weekly for at most 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks or months. In a further aspect, a therapeutic composition is administered at least once for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive months or years, chronically for a subject's entire life span, or an indefinite period of time.

In one aspect, a therapeutic composition is administered to an recurrent diverticulitis patient in need thereof at least twice daily or at least twice weekly for at least two consecutive days or weeks. In one aspect, a therapeutic composition is administered at least twice daily or at least twice weekly for at least 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least twice daily or at least twice weekly for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks. In one aspect, a therapeutic composition is administered at least twice daily or at least twice weekly for at most 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least twice daily or at least twice weekly for at most 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks or months. In a further aspect, a therapeutic composition is administered at least twice for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive months or years, chronically for a subject's entire life span, or an indefinite period of time.

In one aspect, a therapeutic composition is administered to an recurrent diverticulitis patient in need thereof at least three times daily or at least three times weekly for at least two consecutive days or weeks. In one aspect, a therapeutic composition is administered at least three times daily or at least three times weekly for at least 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least three times daily or at least three times weekly for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks. In one aspect, a therapeutic composition is administered at least three times daily or at least three times weekly for at most 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 consecutive days or weeks. In another aspect, a therapeutic composition is administered at least three times daily or at least three times weekly for at most 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks or months. In a further aspect, a therapeutic composition is administered at least three times for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive months or years, chronically for a subject's entire life span, or an indefinite period of time.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises administering orally to the subject a pharmaceutically active dose of a therapeutic composition comprising live, non-pathogenic, synthetic bacterial mixture or live, non-pathogenic, purified or extracted, fecal microbiota, where the dose is administered at a dosing schedule of at least once or twice daily or at least once or twice weekly for at least three consecutive days or weeks. In another aspect, a dose is administered at least once, twice, or three times daily or at least once, twice, or three times daily for a period between 1 and 12 weeks, between 2 and 12 weeks, between 3 and 12 weeks, between 4 and 12 weeks, between 5 and 12 weeks, between 6 and 12 weeks, between 7 and 12 weeks, between 8 and 12 weeks, between 9 and 12 weeks, between 10 and 12 weeks, between 1 and 2 weeks, between 2 and 3 weeks, between 3 and 4 weeks, between 4 and 5 weeks, between 5 and 6 weeks, between 6 and 7 weeks, between 7 and 8 weeks, between 8 and 9 weeks, between 9 and 10 weeks, or between 10 and 11 weeks.

In one aspect, the present disclosure provides a method for treating recurrent diverticulitis in a subject in need thereof, where the method comprises a first dosing schedule followed by a second dosing schedule. In one aspect, a first dosing schedule comprises a treatment or induction dose. In one aspect, a first dosing schedule comprises a continuous dosing schedule. In another aspect, a second dosing schedule comprises a maintenance dose lower than or equal to a pharmaceutically active dose of a first dosing schedule. In another aspect, a second dosing schedule lasts for at least about 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, or 96 months. In one aspect, a second dosing schedule lasts permanently, for a treated subject's entire life span, or an indefinite period of time. In one aspect, a second dosing schedule is a continuous dosing schedule. In another aspect, a second dosing schedule is an intermittent dosing schedule. In a further aspect, a second dosing schedule is an intermittent dosing schedule comprising a treatment period of at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 days followed by a resting period of at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 days. In another aspect, a second dosing schedule comprises administering a second dose (e.g., a maintenance dose) every other day, every two days, or every 3, 4, 5, 6, 7, 8 days. In another aspect, a maintenance dose is administered for an extended period of time with or without titration (or otherwise changing the dosage or dosing schedule). In one aspect, the interval between a first and a second dosing schedule is at least about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 weeks. In another aspect, a second dosing schedule (e.g., a maintenance dose) comprises a dosage about 2, 5, 10, 50, 100, 200, 400, 800, 1000, 5000 or more folds lower than the dosage used in a first dosing schedule (e.g., an initial treatment dose). In another aspect, a second dosing schedule (e.g., a maintenance dosing schedule) has an equal or lower dosing frequency than a first dosing schedule (e.g., an initial treatment dosing schedule). In another aspect, a second dosing schedule (e.g., a maintenance dosing schedule) has a higher dosing interval than a first dosing schedule (e.g., an initial treatment dosing schedule).

In one aspect, a first or second dosing schedule used in a method can be once-a-week, twice-a-week, or thrice-a-week. The term “once-a-week” means that a dose is administered once in a week, preferably on the same day of each week. “Twice-a-week” means that a dose is administered two times in a week, preferably on the same two days of each weekly period. “Thrice-a-week” means that a dose is administered three times in a week, preferably on the same three days of each weekly period.

In one aspect, a subject being treated is a subject already with recurrent diverticulitis. Administration of a disclosed therapeutic composition to clinically, asymptomatic human subject who is genetically predisposed or prone to recurrent diverticulitis is also useful in preventing the onset of clinical symptoms of recurrent diverticulitis. A human subject genetically predisposed or prone to recurrent diverticulitis can be a human subject having a close family member or relative exhibiting or having suffered recurrent diverticulitis. In another aspect, a subject being treated is a subject in which recurrent diverticulitis is to be prevented. In another aspect, a subject being treated is predisposed or susceptible to recurrent diverticulitis. In another aspect, a subject being treated is a subject diagnosed as having recurrent diverticulitis. In one aspect, a subject being treated is a patient in need of diverticulitis treatment. In another aspect, a patient being treated is immunocompromised. In another aspect, a patient being treated has both recurrent diverticulitis and IBD, IBS, or a C. diff infection.

In one aspect, a subject being treated has a stage I, stage II, stage III, or stage IV diverticulitis. In one aspect, the clinical staging of diverticulitis follows a modified Hinchey classification. Stage I is defined by the presence of a pericolic abscess. Stage II is defined by distant abscesses susceptible to percutaneous drainage. Stage III is defined by complex abscesses associated with a possible fistula. Stage IV is defined by fecal peritonitis. In another aspect, the clinical staging of diverticulitis follows Hinchey's classification as follows: Stage I: Diverticulitis with phlegmon or localized pericolic or mesenteric abscess; Stage II: Diverticulitis with walled-off pelvic, intra-abdominal, or retroperitoneal abscess; Stage III: Perforated diverticulitis causing generalized purulent peritonitis; and Stage IV: Rupture of diverticula into the peritoneal cavity with fecal contamination causing generalized fecal peritonitis.

In one aspect, a patient is subject to a treatment described here after being diagnosed with diverticulitis via computed tomography (CT) scanning of the abdomen. In another aspect, a diverticulitis patient treated here has a CT finding selected from the group consisting of pericolic fat stranding due to inflammation, colonic diverticula, bowel wall thickening, soft-tissue inflammatory masses, phlegmon, and abscesses. In one aspect, a diverticulitis patient treated here without requiring prior diagnosis via CT.

In one aspect, a subject being treated is a human patient. In one aspect, a patient is a male patient. In one aspect, a patient is a female patient. In one aspect, a patient is a premuature newborn. In one aspect, a patient is a term newborn. In one aspect, a patient is a neonate. In one aspect, a patient is an infant. In one aspect, a patient is a toddler. In one aspect, a patient is a young child. In one aspect, a patient is a child. In one aspect, a patient is an adolescent. In one aspect, a patient is a pediatric patient. In one aspect, a patient is a geriatric patient. In one aspect, a human patient is a child patient below about 18, 15, 12, 10, 8, 6, 4, 3, 2, or 1 year old. In another aspect, a human patient is an adult patient. In another aspect, a human patient is an elderly patient. In a further aspect, a human patient is a patient above about 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, or 95 years old. In another aspect, a patient is about between 1 and 5, between 2 and 10, between 3 and 18, between 21 and 50, between 21 and 40, between 21 and 30, between 50 and 90, between 60 and 90, between 70 and 90, between 60 and 80, or between 65 and 75 years old. In one aspect, a patient is a young old patient (65-74 years). In one aspect, a patient is a middle old patient (75-84 years). In one aspect, a patient is an old patient (>85 years).

In one aspect, a method comprises administering a therapeutic composition orally, by enema, or via rectal suppository. In one aspect, a therapeutic composition administered herein is formulated as an enteric coated (and/or acid-resistant) capsule or microcapsule, or formulated as part of or administered together with a food, a food additive, a dairy-based product, a soy-based product or a derivative thereof, a jelly, flavored liquid, ice block, ice-cream, or a yogurt. In another aspect, a therapeutic composition administered herein is formulated as an acid-resistant enteric coated capsule. A therapeutic composition can be provided as a powder for sale in combination with a food or drink. A food or drink can be a dairy-based product or a soy-based product. In another aspect, a food or food supplement contains enteric-coated and/or acid-resistant microcapsules containing a therapeutic composition.

In an aspect, a therapeutic composition comprises a liquid culture. In another aspect, a therapeutic composition is lyophilized, pulverized and powdered. It may then be infused, dissolved such as in saline, as an enema. Alternatively the powder may be encapsulated as enteric-coated and/or acid-resistant capsules for oral administration. These capsules may take the form of enteric-coated and/or acid-resistant microcapsules. A powder can preferably be provided in a palatable form for reconstitution for drinking or for reconstitution as a food additive. In a further aspect, a food is yogurt. In one aspect, a powder may be reconstituted to be infused via naso-duodenal infusion.

In another aspect, a therapeutic composition administered herein is in a liquid, frozen, freeze-dried, spray-dried, lyophilized, or powder form. In a further aspect, a therapeutic composition administered herein is formulated as a delayed or gradual enteric release form. In another aspect, a therapeutic composition administered herein comprises an excipient, a saline, a buffer, a buffering agent, or a fluid-glucose-cellobiose agar (RGCA) media. In another aspect, a therapeutic composition administered herein comprises a cryoprotectant. In one aspect, a cryoprotectant comprises polyethylene glycol, skim milk, erythritol, arabitol, sorbitol, glucose, fructose, alanine, glycine, proline, sucrose, lactose, ribose, trehalose, dimethyl sulfoxide (DMSO), glycerol, or a combination thereof.

In one aspect, a therapeutic composition administered herein further comprises an acid suppressant, an antacid, an H2 antagonist, a proton pump inhibitor or a combination thereof. In one aspect, a therapeutic composition administered herein substantially free of non-living matter. In another aspect, a therapeutic composition administered herein substantially free of acellular material selected from the group consisting of residual fiber, DNA, viral coat material, and non-viable material.

In one aspect, a therapeutic composition also comprises or is supplemented with a prebiotic nutrient selected from the group consisting of polyols, fructooligosaccharides (FOSs), oligofructoses, inulins, galactooligosaccharides (GOSs), xylooligosaccharides (XOSs), polydextroses, monosaccharides, tagatose, and/or mannooligosaccharides.

In one aspect, a method further comprises pretreating a subject with an antibiotic composition prior to administering a therapeutic bacterial or microbiota composition. In one aspect, an antibiotic composition administered herein comprises an antibiotic selected from the group consisting of rifabutin, clarithromycin, clofazimine, vancomycin, rifampicin, nitroimidazole, chloramphenicol, and a combination thereof. In another aspect, an antibiotic composition administered herein comprises an antibiotic selected from the group consisting of rifaximin, rifamycin derivative, rifampicin, rifabutin, rifapentine, rifalazil, bicozamycin, aminoglycoside, gentamycin, neomycin, streptomycin, paromomycin, verdamicin, mutamicin, sisomicin, netilmicin, retymicin, kanamycin, aztreonam, aztreonam macrolide, clarithromycin, dirithromycin, roxithromycin, telithromycin, azithromycin, bismuth subsalicylate, vancomycin, streptomycin, fidaxomicin, amikacin, arbekacin, neomycin, netilmicin, paromomycin, rhodostreptomycin, tobramycin, apramycin, and a combination thereof. In a further aspect, a method further comprises pretreating a subject with an anti-inflammatory drug prior to administration of a therapeutic bacterial or microbiota composition.

In one aspect, a method achieves a remission, cure, response, or resolution rate of recurrent diverticulitis of at least about 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 97%, or 99%. In one aspect, a treatment method described here reduces the recurrence frequency in a recurrent diverticulitis patient by at least 10%, 20%, 30%, 50%, 60%, 70%, 80%, or 90% in at least 10%, 20%, 30%, 50%, 60%, 70%, 80%, or 90% patients compared to baseline (e.g., immediately prior to treatment).

In one aspect, every about 200 mg of a pharmaceutical composition comprises a pharmacologically active dose. In one aspect, every about 75, 100, 125, 150, 175, 200, 250, 300, 350, 400, 450, 500, 750, 1000, 1500, or 2000 mg of a pharmaceutical composition comprises a pharmacologically active dose.

In one aspect, a pharmaceutically active or therapeutic effective dose comprises at least about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cfu. In another aspect, a pharmaceutically active therapeutic effective dose comprises at most about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cfu. In a further aspect, a pharmacologically active therapeutic effective dose is selected from the group consisting of from 10⁸ cfu to 10¹⁴ cfu, from 10⁹ cfu to 10¹³ cfu, from 10¹⁰ cfu to 10¹² cfu, from 10⁹ cfu to 10¹⁴ cfu, from 10⁹ cfu to 10¹² cfu, from 10⁹ cfu to 10¹¹ cfu, from 10⁹ cfu to 10¹⁰ cfu, from 10¹⁰ cfu to 10¹⁴ cfu, from 10¹⁰ cfu to 10¹³ cfu, from 10¹¹ cfu to 10¹⁴ cfu, from 10¹¹ cfu to 10¹³ cfu, from 10¹² cfu to 10¹⁴ cfu, and from 10¹³ cfu to 10¹⁴ cfu. In one aspect, a pharmaceutical composition comprises the foregoing pharmaceutically active or therapeutic effective dose in a unit weight of about 0.2, 0.4, 0.6, 0.8 or 1.0 gram, or a unit volume of about 0.2, 0.4, 0.6, 0.8 or 1.0 milliliter.

In one aspect, a pharmaceutically active or therapeutic effective dose comprises at least about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cells or spores. In another aspect, a pharmaceutically active or therapeutic effective dose comprises at most about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ total cells or spores. In a further aspect, a pharmacologically active or therapeutic effective dose is selected from the group consisting of from 10⁸ to 10¹⁴, from 10⁹ to 10¹³, from 10¹⁰ to 10¹², from 10⁹ to 10¹⁴, from 10⁹ to 10¹², from 10⁹ to 10¹¹, from 10⁹ to 10¹⁰, from 10¹⁰ to 10¹⁴, from 10¹⁰ to 10¹³, from 10¹¹ to 10¹⁴, from 10¹¹ to 10¹³, from 10¹² to 10¹⁴, and from 10¹³ to 10¹⁴ cells or spores. In an aspect, the pharmaceutically active or therapeutic effective dose cell count is directed to live cells. In one aspect, a pharmaceutical composition comprises the foregoing pharmaceutically active or therapeutic effective dose in a unit weight of about 0.2, 0.4, 0.6, 0.8 or 1.0 gram, or a unit volume of about 0.2, 0.4, 0.6, 0.8 or 1.0 milliliter.

In one aspect, a therapeutic composition administered herein comprises fecal bacteria. In one aspect, a therapeutic composition administered herein comprises one or more, two or more, three or more, four or more, or five or more isolated, purified, or cultured microorganisms selected from the group consisting of Clostridium, Bacillus, Collinsella, Bacteroides, Eubacterium, Fusobacterium, Propionibacterium, Lactobacillus, Ruminococcus, Escherichia coli, Gemmiger, Desulfomonas, Peptostreptococcus, Bifidobacterium, Coprococcus, Dorea, and Monilia.

In one aspect, a therapeutic composition administered herein comprises at least one, at least two, at least three, at least four, at least five, at least six, or at least seven fecal microorganisms selected from the group consisting of a Bacteroides fragilis ssp. vulgatus, Collinsella aerofaciens, Bacteroides fragilis ssp. thetaiotaomicron, Peptostreptococcus productus II, Parabacteroides distasonis, Fusobacterium prausnitzii, Coprococcus eutactus, Collinsella aerofaciens III, Peptostreptococcus productus I, Ruminococcus bromii, Bifidobacterium adolescentis, Gemmiger formicilis, Bifidobacterium longum, Eubacterium siraeum, Ruminococcus torques, Eubacterium rectale, Eubacterium eligens, Bacteroides eggerthii, Clostridium leptum, Bacteroides fragilis ssp. A, Eubacterium biforme, Bifidobacterium infantis, Eubacterium rectale III-F, Coprococcus comes, Pseudoflavonifractor capillosus, Ruminococcus albus, Dorea formicigenerans, Eubacterium hallii, Eubacterium ventriosum I, Fusobacterium russi, Ruminococcus obeum, Eubacterium rectale, Clostridium ramosum, Lactobacillus leichmannii, Ruminococcus callidus, Butyrivibrio crossotus, Acidaminococcus fermentans, Eubacterium ventriosum, Bacteroides fragilis ssp. fragilis, Bacteroides AR, Coprococcus catus, Aerostipes hadrus, Eubacterium cylindroides, Eubacterium ruminantium, Eubacterium CH-1, Staphylococcus epidermidis, Peptostreptococcus BL, Eubacterium limosum, Tissirella praeacuta, Bacteroides L, Fusobacterium mortiferum I, Fusobacterium naviforme, Clostridium innocuum, Clostridium ramosum, Propionibacterium acnes, Ruminococcus flavefaciens, Ruminococcus AT, Peptococcus AU-1, Bacteroides fragilis ssp. ovatus, -ssp. d, -ssp. f; Bacteroides L-1, L-5; Fusobacterium nucleatum, Fusobacterium mortiferum, Escherichia coli, Gemella morbillorum, Finegoldia magnus, Peptococcus G, —AU-2; Streptococcus intermedius, Ruminococcus lactaris, Ruminococcus CO Gemmiger X, Coprococcus BH, —CC; Eubacterium tenue, Eubacterium ramulus, Bacteroides clostridiiformis ssp. clostridliformis, Bacteroides coagulans, Prevotella oralis, Prevotella ruminicola, Odoribacter splanchnicus, Desuifomonas pigra, Lactobacillus G, Succinivibrio A, and a combination thereof.

In one aspect, a therapeutic composition administered herein comprises no viable Bacteroides, Fusobacterium, Propionibacterium, Lactobacillus, Ruminococcus, Escherichia coli, Gemmiger, Desulfomonas, Peptostreptococcus, Bifidobacterium, Monilia, or any combination thereof. In another aspect, a therapeutic composition administered herein comprises no viable Bacteroides fragilis ssp. vulgatus, Collinsella aerofaciens, Bacteroides fragilis ssp. thetaiotaomicron, Peptostreptococcus productus II, Parabacteroides distasonis, Fusobacterium prausnitzii, Coprococcus eutactus, Collinsella aerofaciens III, Peptostreptococcus productus I, Ruminococcus bromii, Bifidobacterium adolescentis, Gemmiger formicilis, Bifidobacterium longum, Eubacterium siraeum, Ruminococcus torques, Eubacterium rectale, Eubacterium eligens, Bacteroides eggerthii, Clostridium leptum, Bacteroides fragilis ssp. A, Eubacterium biforme, Bifidobacterium infantis, Eubacterium rectale III-F, Coprococcus comes, Pseudollavonifractor capillosus, Ruminococcus albus, Dorea formicigenerans, Eubacterium hallii, Eubacterium ventriosum I, Fusobacterium russi, Ruminococcus obeum, Eubacterium rectale, Clostridium ramosum, Lactobacillus leichmannii, Ruminococcus callidus, Butyrivibrio crossotus, Acidaminococcus fermentans, Eubacterium ventriosum, Bacteroides fragilis ssp. fragilis, Bacteroides AR, Coprococcus catus, Aerostipes hadrus, Eubacterium cylindroides, Eubacterium ruminantium, Eubacterium CH-1, Staphylococcus epidermidis, Peptostreptococcus BL, Eubacterium limosum, Tissirella praeacuta, Bacteroides L, Fusobacterium mortiferum I, Fusobacterium naviforme, Clostridium innocuum, Clostridium ramosum, Propionibacterium acnes, Ruminococcus flavefaciens, Ruminococcus AT, Peptococcus AU-1, Bacteroides fragilis ssp. ovatus, -ssp. d, -ssp. f; Bacteroides L-1, L-5; Fusobacterium nucleatum, Fusobacterium mortiferum, Escherichia coli, Gemella morbillorum, Finegoldia magnus, Peptococcus G, —AU-2; Streptococcus intermedius, Ruminococcus lactaris, Ruminococcus CO Gemmiger X, Coprococcus BH, —CC; Eubacterium tenue, Eubacterium ramulus, Bacteroides clostridiiformis ssp. clostridliformis, Bacteroides coagulans, Prevotella oralis, Prevotella ruminicola, Odoribacter splanchnicus, Desuifomonas pigra, Lactobacillus G, Succinivibrio A, or a combination thereof.

In one aspect, a therapeutic composition administered herein comprises a fecal microbiota. In another aspect, the preparation of a fecal microbiota used herein involves a treatment selected from the group consisting of ethanol treatment, detergent treatment, heat treatment, irradiation, and sonication. In another aspect, the preparation of a fecal microbiota used herein involves no treatment selected from the group consisting of ethanol treatment, detergent treatment, heat treatment, irradiation, and sonication. In one aspect, the preparation of a fecal microbiota used herein involves a separation step selected from the group consisting of density gradients, filtration (e.g., sieves, nylon mesh), and chromatography. In another aspect, the preparation of a fecal microbiota used herein involves no separation step selected from the group consisting of density gradients, filtration (e.g., sieves, nylon mesh), and chromatography. In another aspect, a fecal microbiota used herein comprises a donor's entire fecal microbiota. In another aspect, a therapeutic composition administered herein comprises a fecal microbiota substantially free of eukaryotic cells from the fecal microbiota's donor.

In another aspect, a therapeutic composition administered herein comprises a fecal microbiota further supplemented, spiked, or enhanced with a fecal microorganism. In one aspect, a fecal microbiota is supplemented with a non-pathogenic (or with attenuated pathogenicity) bacterium of Clostridium, Collinsella, Dorea, Ruminococcus, Coprococcus, Prevotella, Veillonella, Bacteroides, Baccillus, or a combination thereof. In another aspect, a therapeutic composition administered herein comprises a fecal microbiota further supplemented, spiked, or enhanced with a species of Veillonellaceae, Firmicutes, Gammaproteobacteria, Bacteroidetes, or a combination thereof. In another aspect, a therapeutic composition administered herein comprises a fecal microbiota further supplemented with fecal bacterial spores. In one aspect, fecal bacterial spores are Clostridium spores, Bacillus spores, or both.

In an aspect, a therapeutic composition comprises a fecal microbiota from a subject selected from the group consisting of a human, a bovine, a dairy calf, a ruminant, an ovine, a caprine, or a cervine. In another aspect, a therapeutic composition can be administered to a subject selected from the group consisting of a human, a bovine, a dairy calf, a ruminant, an ovine, a caprine, or a cervine. In an aspect, a therapeutic composition is substantially or nearly odourless.

In an aspect, a therapeutic composition provided or administered herein comprises a fecal microbiota comprising a Shannon Diversity Index of greater than or equal to 0.3, greater than or equal to 0.4, greater than or equal to 0.5, greater than or equal to 0.6, greater than or equal to 0.7, greater than or equal to 0.8, greater than or equal to 0.9, greater than or equal to 1.0, greater than or equal to 1.1, greater than or equal to 1.2, greater than or equal to 1.3, greater than or equal to 1.4, greater than or equal to 1.5, greater than or equal to 1.6, greater than or equal to 1.7, greater than or equal to 1.8, greater than or equal to 1.9, greater than or equal to 2.0, greater than or equal to 2.1, greater than or equal to 2.2, greater than or equal to 2.3, greater than or equal to 2.4, greater than or equal to 2.5, greater than or equal to 3.0, greater than or equal to 3.1, greater than or equal to 3.2, greater than or equal to 3.3, greater than or equal to 3.4, greater than or equal to 3.5, greater than or equal to 3.6, greater than or equal to 3.7, greater than or equal to 3.8, greater than or equal to 3.9, greater than or equal to 4.0, greater than or equal to 4.1, greater than or equal to 4.2, greater than or equal to 4.3, greater than or equal to 4.4, greater than or equal to 4.5, or greater than or equal to 5.0. In another aspect, a therapeutic composition comprises fecal microbiota comprising a Shannon Diversity Index of between 0.1 and 3.0, between 0.1 and 2.5, between 0.1 and 2.4, between 0.1 and 2.3, between 0.1 and 2.2, between 0.1 and 2.1, between 0.1 and 2.0, between 0.4 and 2.5, between 0.4 and 3.0, between 0.5 and 5.0, between 0.7 and 5.0, between 0.9 and 5.0, between 1.1 and 5.0, between 1.3 and 5.0, between 1.5 and 5.0, between 1.7 and 5.0, between 1.9 and 5.0, between 2.1 and 5.0, between 2.3 and 5.0, between 2.5 and 5.0, between 2.7 and 5.0, between 2.9 and 5.0, between 3.1 and 5.0, between 3.3 and 5.0, between 3.5 and 5.0, between 3.7 and 5.0, between 31.9 and 5.0, or between 4.1 and 5.0. In one aspect, a Shannon Diversity Index is calculated at the phylum level. In another aspect, a Shannon Diversity Index is calculated at the family level. In one aspect, a Shannon Diversity Index is calculated at the genus level. In another aspect, a Shannon Diversity Index is calculated at the species level. In a further aspect, a therapeutic composition comprises a preparation of flora in proportional content that resembles a normal healthy human fecal flora.

In a further aspect, a therapeutic composition comprises fecal bacteria from at least 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 different families. In an aspect, a therapeutic composition provided or administered herein comprises a fecal microbiota comprising no greater than 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10% weight non-living material/weight biological material. In another aspect, a therapeutic composition provided or administered herein comprises a fecal microbiota comprising no greater than 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, or 95% weight non-living material/weight biological material. In another aspect, a therapeutic composition provided or administered herein comprises, consists of, or consists essentially of, particles of non-living material and/or particles of biological material of a fecal sample that passes through a sieve, a column, or a similar filtering device having a sieve, exclusion, or particle filter size of 2.0 mm, 1.0 mm, 0.33 mm, 0.5 mm, 0.25 mm, 0.212 mm, 0.180 mm, 0.150 mm, 0.125 mm, 0.106 mm, 0.090 mm, 0.075 mm, 0.063 mm, 0.053 mm, 0.045 mm, 0.038 mm, 0.032 mm, 0.025 mm, 0.020 mm, 0.01 mm, or 0.2 mm. “Non-living material” does not include an excipient, e.g., a pharmaceutically inactive substance, such as a cryoprotectant, added to a processed fecal material. “Biological material” refers to the living material in fecal material, and includes microbes including prokaryotic cells, such as bacteria and archaea (e.g., living prokaryotic cells and spores that can sporulate to become living prokaryotic cells), eukaryotic cells such as protozoa and fungi, and viruses. In one aspect, “biological material” refers to the living material, e.g., the microbes, eukaryotic cells, and viruses, which are present in the colon of a normal healthy human. In an aspect, a therapeutic composition provided or administered herein comprises an extract of human feces where the composition is substantially odorless. In an aspect, a therapeutic composition provided or administered herein comprises fecal material or a fecal floral preparation in a lyophilized, crude, semi-purified or purified formulation.

In an aspect, a fecal microbiota in a therapeutic composition comprises highly refined or purified fecal flora, e.g., substantially free of non-floral fecal material. In an aspect, a fecal microbiota can be further processed, e.g., to undergo microfiltration before, after, or before and after sieving. In another aspect, a highly purified fecal microbiota product is ultra-filtrated to remove large molecules but retain the therapeutic microflora, e.g., bacteria.

In another aspect, a fecal microbiota in a therapeutic composition used herein comprises or consists essentially of a substantially isolated or a purified fecal flora or entire (or substantially entire) microbiota that is (or comprises) an isolate of fecal flora that is at least about 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.6%, 99.7%, 99.8% or 99.9% isolated or pure, or having no more than about 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% or 1.0% or more non-fecal floral material; or, a substantially isolated, purified, or substantially entire microbiota as described in Sadowsky et al., WO 2012/122478 A1, or as described in Borody et al., WO 2012/016287 A2.

In an aspect, a fecal microbiota in a therapeutic composition comprises a donor's substantially entire or non-selected fecal microbiota, reconstituted fecal material, or synthetic fecal material. In another aspect, the fecal microbiota in a therapeutic composition comprises no antibiotic resistant population. In another aspect, a therapeutic composition comprises a fecal microbiota and is largely free of extraneous matter (e.g., non-living matter including acellular matter such as residual fiber, DNA, RNA, viral coat material, non-viable material; and living matter such as eukaryotic cells from the fecal matter's donor).

In an aspect, a fecal microbiota in a therapeutic composition used herein is derived from disease-screened fresh homologous feces or equivalent freeze-dried and reconstituted feces. In an aspect, a fresh homologous feces does not include an antibiotic resistant population. In another aspect, a fecal microbiota in a therapeutic composition is derived from a synthetic fecal composition. In an aspect, a synthetic fecal composition comprises a preparation of viable flora which preferably in proportional content, resembles normal healthy human fecal flora which does not include antibiotic resistant populations. Suitable microorganisms may be selected from the following: Bacteroides, Eubacterium, Fusobacterium, Propionibacterium, Lactobacillus, Ruminococcus, Escherichia coli, Gemmiger, Clostridium, Desulfomonas, Peptostreptococcus, Bifidobacterium, Collinsella, Coprococcus, Dorea, and Ruminococcus.

In an aspect, a therapeutic composition used in a treatment disclosed herein comprises a sterile fecal filtrate or a non-cellular fecal filtrate. In one aspect, a sterile fecal filtrate originates from a donor stool. In another aspect, a sterile fecal filtrate originates from cultured microorganisms. In another aspect, a sterile fecal filtrate comprises a non-cellular non-particulate fecal component. In one aspect, a sterile fecal filtrate is made as described in WO2014/078911, published May 30, 2014. In another aspect, a sterile fecal filtrate is made as described in Ott et al., Gastroenterology 152:799-911 (2017).

In one aspect, a fecal filtrate comprises secreted, execreted or otherwise liquid components or a microbiota, e.g., biologically active molecules (BAMs), which can be antibiotics or anti-inflammatories, are preserved, retained or reconstituted in a flora extract.

In one aspect, an exemplary therapeutic composition comprises starting material from a donor from a defined donor pool, where this donor contributes a stool that is centrifuged, then filtered with very high-level filtration using e.g., either metal sieving or Millipore filters, or equivalent, to ultimately permit only cells of bacterial origin to remain, e.g., often less than about 5 micrometres diameter. After the initial centrifugation, the solid material is separated from the liquid, and the solid is then filtered in progressively reducing size filters and tangential filters, e.g., using a Millipore filtration, and optionally, also comprising use of nano-membrane filtering. The filtering can also be done by sieves as described in WO 2012/122478, but in contrast using sieves that are smaller than 0.0120 mm, down to about 0.0110 mm, which ultimately result in having only bacterial cells present.

The supernatant separated during centrifugation is now taken and filtered progressively in a filtering, e.g., a Millipore filtering or equivalent systems, to end up with liquid which is finely filtered through an about 0.22 micron filter. This removes all particulate matter including all living matter, including bacteria and viruses. The product then is sterile, but the aim is to remove the bacteria but to keep their secretions, especially antimicrobial bacteriocins, bacteria-derived cytokine-like products and all accompanying Biologically Active Molecules (BAMs), including: thuricin (which is secreted by bacilli in donor stools), bacteriocins (including colicin, troudulixine or putaindicine, or microcin or subtilosin A), lanbiotics (including nisin, subtilin, epidermin, mutacin, mersacidin, actagardine, cinnamycin), lacticins and other antimicrobial or anti-inflammatory compounds.

In one aspect, a therapeutic composition used here comprises a reconstituted fecal flora consisting essentially of a combination of a purified fecal microbiota and a non-cellular fecal filtrate. In another aspect, a therapeutic composition used here comprises a purified fecal microbiota supplemented with one or more non-cellular non-particulate fecal components. In one aspect, a therapeutic composition used here comprises one or more non-cellular non-particulate fecal components. In one aspect, one or more non-cellular non-particulate fecal components comprise synthetic molecules, biologically active molecules produced by a fecal microorganism, or both. In another aspect, one or more non-cellular non-particulate fecal components comprise biologically active proteins or peptides, micronutrients, fats, sugars, small carbohydrates, trace elements, mineral salts, ash, mucous, amino acids, nutrients, vitamins, minerals, or any combination thereof. In one aspect, one or more non-cellular non-particulate fecal components comprise one or more biologically active molecules selected from the group consisting of bacteriocin, lanbiotic, and lacticin. In another aspect, one or more non-cellular non-particulate fecal components comprise one or more bacteriocins selected from the group consisting of colicin, troudulixine, putaindicine, microcin, and subtilosin A. In one aspect, one or more non-cellular non-particulate fecal components comprise one or more lanbiotics selected from the group consisting of thuricin, nisin, subtilin, epidermin, mutacin, mersacidin, actagardine, and cinnamycin. In another aspect, one or more non-cellular non-particulate fecal components comprise an anti-spore compound, an antimicrobial compound, an anti-inflammatory compound, or any combination thereof. In a further aspect, one or more non-cellular non-particulate fecal components comprise an interleukin, a cytokine, a leukotriene, an eicosanoid, or any combination thereof.

In another aspect, a treatment method provided here comprises the use of both fecal bacterial cells, e.g., a partial or a complete representation of the human GI microbiota, and an isolated, processed, filtered, concentrated, reconstituted and/or artificial liquid component (e.g., fecal filtrate) of the flora (the microbiota) which comprises, among others ingredients, bacterial secretory products such as e.g., bacteriocins (proteinaceous toxins produced by bacteria, including colicin, troudulixine or putaindicine, or microcin or subtilosin A), lanbiotics (a class of peptide antibiotics that contain a characteristic polycyclic thioether amino acid lanthionine or methyllanthionine, and unsaturated amino acids dehydroalanine and 2-aminoisobutyric acid; which include thuricin (which is secreted by bacilli in donor stools), nisin, subtilin, epidermin, mutacin, mersacidin, actagardine, cinnamycin), a lacticin (a family of pore-forming peptidic toxins) and other antimicrobial or anti-inflammatory compounds and/or additional biologically active molecules (BAMs) produced by bacteria or other microorganisms of the microbiota, and/or which are found in the “liquid component” of a microbiota.

In one aspect, a fecal bacteria-based therapeutic composition is used concurrently with a fecal non-cellular filtrate-based therapeutic composition. In another aspect, a patient is treated with a first fecal non-cellular filtrate-based therapeutic composition before being given a second fecal bacteria-based therapeutic composition, or vice versa. In a further aspect, a treatment method comprises three steps: first, antibiotic pre-treatment to non-selectively remove infectious pathogen(s); second, a fecal non-cellular filtrate-based treatment step to further suppress selected infectious pathogen(s); and third, giving the patient a fecal bacteria-based therapeutic composition to re-establish a functional intestinal microbiome.

In an aspect, a therapeutic composition is combined with other adjuvants such as antacids to dampen bacterial inactivation in the stomach. (e.g., Mylanta, Mucaine, Gastrogel). In another aspect, acid secretion in the stomach could also be pharmacologically suppressed using H2-antagonists or proton pump inhibitors. An example H2-antagonist is ranitidine. An example proton pump inhibitor is omeprazole. In one aspect, an acid suppressant is administered prior to administering, or in co-administration with, a therapeutic composition.

In an aspect, a therapeutic composition is in the form of: an enema composition which can be reconstituted with an appropriate diluent; enteric-coated capsules; enteric-coated microcapsules; acid-resistant tablet; acid-resistant capsules; acid-resistant microcapsules; powder for reconstitution with an appropriate diluent for naso-enteric infusion or colonoscopic infusion; powder for reconstitution with appropriate diluent, flavoring and gastric acid suppression agent for oral ingestion; powder for reconstitution with food or drink; or food or food supplement comprising enteric-coated and/or acid-resistant microcapsules of the composition, powder, jelly, or liquid.

In an aspect, a treatment method effects a cure, reduction of the symptoms, or a percentage reduction of symptoms of recurrent diverticulitis. The change of flora is preferably as “near-complete” as possible and the flora is replaced by viable organisms which will crowd out any remaining, original flora. Typically the change in enteric flora comprises introduction of an array of predetermined flora into the gastro-intestinal system, and thus in a preferred form the method of treatment comprises substantially or completely displacing pathogenic enteric flora in patients requiring such treatment.

In another aspect, a therapeutic composition can be provided together with a pharmaceutically acceptable carrier. As used herein, a “pharmaceutically acceptable carrier” refers to a non-toxic solvent, dispersant, excipient, adjuvant, or other material which is mixed with a live bacterium in order to permit the formation of a pharmaceutical composition, e.g., a dosage form capable of administration to the patient. A pharmaceutically acceptable carrier can be liquid (e.g., saline), gel or solid form of diluents, adjuvant, excipients or an acid resistant encapsulated ingredient. Suitable diluents and excipients include pharmaceutical grades of physiological saline, dextrose, glycerol, mannitol, lactose, starch, magnesium stearate, sodium saccharin, cellulose, magnesium carbonate, and the like, and combinations thereof. In another aspect, a therapeutic composition may contain auxiliary substances such as wetting or emulsifying agents, stabilizing or pH buffering agents. In an aspect, a therapeutic composition contains about 1%-5%, 5%-10%, 10%-15%, 15-20%, 20%-25%, 25-30%, 30-35%, 40-45%, 50%-55%, 1%-95%, 2%-95%, 5%-95%, 10%-95%, 15%-95%, 20%-95%, 25%-95%, 30%-95%, 35%-95%, 40%-95%, 45%-95%, 50%-95%, 55%-95%, 60%-95%, 65%-95%, 70%-95%, 45%-95%, 80%-95%, or 85%-95% of active ingredient. In an aspect, a therapeutic composition contains about 2%-70%, 5%-60%, 10%-50%, 15%-40%, 20%-30%, 25%-60%, 30%-60%, or 35%-60% of active ingredient.

In an aspect, a therapeutic composition can be incorporated into tablets, drenches, boluses, capsules or premixes. Formulation of these active ingredients into such dosage forms can be accomplished by means of methods well known in the pharmaceutical formulation arts. See, e.g., U.S. Pat. No. 4,394,377. Filling gelatin capsules with any desired form of the active ingredients readily produces capsules. If desired, these materials can be diluted with an inert powdered diluent, such as sugar, starch, powdered milk, purified crystalline cellulose, or the like to increase the volume for convenience of filling capsules.

In an aspect, conventional formulation processes can be used to prepare tablets containing a therapeutic composition. In addition to the active ingredients, tablets may contain a base, a disintegrator, an absorbent, a binder, and a lubricant. Typical bases include lactose, sugar, sodium chloride, starch and mannitol. Starch is also a good disintegrator as is alginic acid. Surface-active agents such as sodium lauryl sulfate and dioctyl sodium sulphosuccinate are also sometimes used. Commonly used absorbents include starch and lactose. Magnesium carbonate is also useful for oily substances. As a binder there can be used, for example, gelatin, gums, starch, dextrin, polyvinyl pyrrolidone and various cellulose derivatives. Among the commonly used lubricants are magnesium stearate, talc, paraffin wax, various metallic soaps, and polyethylene glycol.

In an aspect, for preparing solid compositions such as tablets, an active ingredient is mixed with a pharmaceutical carrier, e.g., conventional tableting ingredients such as corn starch, lactose, sucrose, sorbitol, talc, stearic acid, magnesium stearate, dicalcium phosphate or gums, or other pharmaceutical diluents, e.g. water, to form a solid preformulation composition containing a homogeneous mixture of a composition of the present invention. When referring to these preformulation compositions as homogeneous, it is meant that the active ingredient is dispersed evenly throughout the composition so that the composition may be readily subdivided into equally effective unit dosage forms such as tablets, pills and capsules. This solid preformulation composition is then subdivided into unit dosage forms of the type described above containing a desired amount of an active ingredient (e.g., at least about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cfu or total cell count). A therapeutic composition used herein can be flavored.

In an aspect, a therapeutic composition can be a tablet or a pill. In one aspect, a tablet or a pill can be coated or otherwise compounded to provide a dosage form affording the advantage of prolonged action. For example, a tablet or pill can comprise an inner dosage and an outer dosage component, the latter being in the form of an envelope over the former. The two components can be separated by an enteric layer which serves to resist disintegration in the stomach and permits the inner component to pass intact into the duodenum or to be delayed in release. A variety of materials can be used for such enteric layers or coatings, such materials including a number of polymeric acids and mixtures of polymeric acids with such materials as shellac, cetyl alcohol and cellulose acetate.

In an aspect, a therapeutic composition can be a drench. In one aspect, a drench is prepared by choosing a saline-suspended form of a therapeutic composition. A water-soluble form of one ingredient can be used in conjunction with a water-insoluble form of the other by preparing a suspension of one with an aqueous solution of the other. Water-insoluble forms of either active ingredient may be prepared as a suspension or in some physiologically acceptable solvent such as polyethylene glycol. Suspensions of water-insoluble forms of either active ingredient can be prepared in oils such as peanut, corn, sesame oil or the like; in a glycol such as propylene glycol or a polyethylene glycol; or in water depending on the solubility of a particular active ingredient. Suitable physiologically acceptable adjuvants may be necessary in order to keep the active ingredients suspended. Adjuvants can include and be chosen from among the thickeners, such as carboxymethylcellulose, polyvinyl pyrrolidone, gelatin and the alginates. Surfactants generally will serve to suspend the active ingredients, particularly the fat-soluble propionate-enhancing compounds. Most useful for making suspensions in liquid nonsolvents are alkylphenol polyethylene oxide adducts, naphthalenesulfonates, alkylbenzene-sulfonates, and the polyoxyethylene sorbitan esters. In addition many substances, which affect the hydrophilicity, density and surface tension of the liquid, can assist in making suspensions in individual cases. For example, silicone anti-foams, glycols, sorbitol, and sugars can be useful suspending agents.

In an aspect, a therapeutic composition comprises non-pathogenic spores of one or more, two or more, three or more, or four or more Clostridium species selected from the group consisting of Clostridium absonum, Clostridium argentinense, Clostridium baratii, Clostridium botulinum, Clostridium cadaveris, Clostridium carnis, Clostridium celatum, Clostridium chauvoei, Clostridium clostridioforme, Clostridium cochlearium, Clostridium fallax, Clostridium felsineum, Clostridium ghonii, Clostridium glycolicum, Clostridium haemolyticum, Clostridium hastiforme, Clostridium histolyticum, Clostridium indolis, Clostridium irregulare, Clostridium limosum, Clostridium malenominatum, Clostridium novyi, Clostridium oroticum, Clostridium paraputrificum, Clostridium perfringens, Clostridium piliforme, Clostridium putrefaciens, Clostridium putrificum, Clostridium sardiniense, Clostridium sartagoforme, Clostridium scindens, Clostridium septicum, Clostridium sordellii, Clostridium sphenoides, Clostridium spiroforme, Clostridium sporogenes, Clostridium sub terminale, Clostridium symbiosum, Clostridium tertium, Clostridium tetani, Clostridium welchii, and Clostridium villosum.

In an aspect, a therapeutic composition comprises purified, isolated, or cultured viable non-pathogenic Clostridium and a plurality of purified, isolated, or cultured viable non-pathogenic microorganisms from one or more genera selected from the group consisting of Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus. In another aspect, a therapeutic composition comprises a plurality of purified, isolated, or cultured viable non-pathogenic microorganisms from one or more genera selected from the group consisting of Clostridium, Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus.

In an aspect, a therapeutic composition comprises two or more genera selected from the group consisting of Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus. In another aspect, a therapeutic composition comprises two or more genera selected from the group consisting of Coprococcus, Dorea, Eubacterium, and Ruminococcus. In a further aspect, a therapeutic composition comprises one or more, two or more, three or more, four or more, or five or more species selected from the group consisting of Coprococcus catus, Coprococcus comes, Dorea longicatena, Eubacterium eligens, Eubacterium hadrum, Eubacterium hallii, Eubacterium rectale, and Ruminococcus torques.

In one aspect, a therapeutic composition comprises at least about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cfu or total cell count. In another aspect, a therapeutic composition comprises at most about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², 10¹³, or 10¹⁴ cfu or total cell count.

In another aspect, a therapeutic composition comprises at least about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², or 10¹³ cells or total cell count. In another aspect, a therapeutic composition comprises at most about 10⁵, 10⁶, 10⁷, 10⁸, 10⁹, 10¹⁰, 10¹¹, 10¹², 10¹³ or 10¹⁴ cells or total cell count.

In one aspect, a therapeutic composition is formulated as an oral capsule, microcapsule, tablet, or pill. In another aspect, a capsule, microcapsule, tablet, or pill is adapted for enteric delivery. In a further aspect, a capsule, microcapsule, tablet, or pill is an enteric capsule, microcapsule, tablet, or pill. In another aspect, a capsule, microcapsule, tablet, or pill comprises an enteric coating, is acid resistant, or both.

In one aspect, this application provides for the following embodiments:

Embodiment 1. A method for treating recurrent diverticulitis in a subject in need thereof, said method comprising administering to said subject a pharmaceutically active dose of a therapeutic composition comprising live non-pathogenic fecal bacteria or a non-cellular fecal filtrate.

Embodiment 2. The method of claim 1, wherein said recurrent diverticulitis is at a clinical stage selected from the group consisting of Stages I to IV.

Embodiment 3. The method of claim 1, wherein said composition comprises an isolated or purified population of said live non-pathogenic fecal bacteria.

Embodiment 4. The method of claim 1, wherein said composition comprises a non-selected fecal microbiota.

Embodiment 5. The method of claim 1, wherein said administration is on a daily basis.

Embodiment 6. The method of claim 1, wherein said administration lasts at least 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 weeks.

Embodiment 7. The method of claim 1, wherein said dose is administered at least once daily or at least once weekly for at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks.

Embodiment 8. The method of claim 1, wherein said dose is administered at least once daily or at least once weekly for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks.

Embodiment 9. The method of claim 1, wherein said dose is administered at least once daily or at least once weekly for at most 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 consecutive days or weeks.

Embodiment 10. The method of claim 1, wherein said dose is administered at least once daily or at least once weekly for at most 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks.

Embodiment 11. The method of claim 1, wherein said dose is administered at least twice daily or at least twice weekly for at least two consecutive days or weeks.

Embodiment 12. The method of claim 11, wherein said dose is administered at least twice daily or at least twice weekly for at least 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks.

Embodiment 13. The method of claim 11, wherein said dose is administered at least twice daily or at least twice weekly for at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks.

Embodiment 14. The method of claim 11, wherein said dose is administered at least twice daily or at least twice weekly for at most 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 consecutive days or weeks.

Embodiment 15. The method of claim 11, wherein said dose is administered at least twice daily or at least twice weekly for at most 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 consecutive weeks.

Embodiment 16. The method of claim 1, wherein said dose is administered at least three times daily or at least three times weekly for at least one day or week.

Embodiment 17. The method of claim 16, wherein said dose is administered at least three times daily or at least three times weekly for at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks.

Embodiment 18. The method of claim 16, wherein said dose is administered at least three times daily or at least three times weekly for at most 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 consecutive days or weeks.

Embodiment 19. The method of claim 1, wherein therapeutic composition comprising both live non-pathogenic fecal bacteria and a non-cellular fecal filtrate.

Embodiment 20. The method of claim 1, wherein therapeutic composition comprising live non-pathogenic fecal bacteria supplemented with a non-cellular fecal filtrate.

Embodiment 21. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises biologically active proteins or peptides, micronutrients, fats, sugars, small carbohydrates, trace elements, mineral salts, ash, mucous, amino acids, nutrients, vitamins, minerals, or any combination thereof.

Embodiment 22. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises one or more biologically active molecules selected from the group consisting of bacteriocin, lanbiotic, and lacticin.e

Embodiment 23. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises one or more bacteriocins selected from the group consisting of colicin, troudulixine, putaindicine, microcin, and subtilosin A.

Embodiment 24. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises one or more lanbiotics selected from the group consisting of thuricin, nisin, subtilin, epidermin, mutacin, mersacidin, actagardine, and cinnamycin.

Embodiment 25. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises an anti-spore compound, an antimicrobial compound, an anti-inflammatory compound, or any combination thereof.

Embodiment 26. The method of claim 1, 19, or 20, wherein said non-cellular fecal filtrate comprises an interleukin, a cytokine, a leukotriene, an eicosanoid, or any combination thereof.

Embodiment 27. The method of any one of preceding claims, wherein said method comprises a first dosing schedule followed by a second dosing schedule.

Embodiment 28. The method of claim 27, wherein said second dosing schedule comprises a maintenance dose lower or equal to the dose of said first dosing schedule.

Embodiment 29. The method of claim 28, wherein said second dosing schedule lasts for at least about 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, or 96 months.

Embodiment 30. The method of claim 28, wherein said second dosing schedule lasts permanently.

Embodiment 31. The method of claim 27, wherein the interval between said first and second dosing schedules is at least about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 weeks.

Embodiment 32. The method of claim 27, wherein said second dosing schedule is an continuous dosing schedule.

Embodiment 33. The method of claim 27, wherein said second dosing schedule is an intermittent dosing schedule.

Embodiment 34. The method of claim 33, wherein said intermittent dosing schedule comprises a treatment period of at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 days followed by a resting period of at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 days.

Embodiment 35. The method of any one of preceding claims, wherein said composition is formulated as a delayed or gradual enteric release form.

Embodiment 36. The method of any one of preceding claims, wherein said administering comprises administering orally, by enema, or via rectal suppository.

Embodiment 37. The method of any one of preceding claims, wherein said composition is formulated as an enteric coated capsule, an acid-resistant, enteric-coated capsule, an enteric coated microcapsule, or formulated as part of a food, a food additive, a dairy-based product, a soy-based product or a derivative thereof, a jelly, or a yogurt.

Embodiment 38. The method of any one of preceding claims, wherein said method eliminates or reduces gastrointestinal dysbiosis.

Embodiment 39. The method of any one of preceding claims, wherein said method increase bacterial diversity in said subject's gastrointestinal tract.

Embodiment 40. The method of any one of preceding claims, wherein said pharmaceutically active dose comprises at least about 105, 106, 107, 108, 109, 1010, 1011, 1012, or 1013 cfu or total number of cells.

Embodiment 41. The method of claim 1, wherein said pharmaceutically active dose comprises at most about 105, 106, 107, 108, 109, 1010, 1011, 1012, or 1013 cfu or total number of cells.

Embodiment 42. The method of claim 1, wherein said pharmaceutically active dose is selected from the group consisting of from 105 to 1014, from 106 to 1014, from 107 to 1014, from 108 to 1014, from 109 to 1013, from 1010 to 1012, from 109 to 1014, from 109 to 1012, from 109 to 1011, from 109 to 1010, from 1010 to 1014, from 1010 to 1013, from 1011 to 1014, from 1011 to 1013, from 1012 to 1014, and from 1013 to 1014 cfu or total number of cells.

Embodiment 43. The method of claim 1, wherein said composition comprises a fecal microbiota further supplemented with a fecal microorganism.

Embodiment 44. The method of claim 43, wherein said fecal microorganism is selected from the group consisting of a Bacteroides fragilis ssp. vulgatus, Collinsella aerofaciens, Bacteroides fragilis ssp. thetaiotaomicron, Peptostreptococcus productus II, Parabacteroides distasonis, Fusobacterium prausnitzii, Coprococcus eutactus, Collinsella aerofaciens III, Peptostreptococcus productus I, Ruminococcus bromii, Bifidobacterium adolescentis, Gemmiger formicilis, Bifidobacterium longum, Eubacterium siraeum, Ruminococcus torques, Eubacterium rectale, Eubacterium eligens, Bacteroides eggerthii, Clostridium leptum, Bacteroides fragilis ssp. A, Eubacterium biforme, Bifidobacterium infantis, Eubacterium rectale III-F, Coprococcus comes, Pseudoflavonifractor capillosus, Ruminococcus albus, Dorea formicigenerans, Eubacterium hallii, Eubacterium ventriosum I, Fusobacterium russi, Ruminococcus obeum, Eubacterium rectale, Clostridium ramosum, Lactobacillus leichmannii, Ruminococcus callidus, Butyrivibrio crossotus, Acidaminococcus fermentans, Eubacterium ventriosum, Bacteroides fragilis ssp. fragilis, Bacteroides AR, Coprococcus catus, Aerostipes hadrus, Eubacterium cylindroides, Eubacterium ruminantium, Eubacterium CH-1, Staphylococcus epidermidis, Peptostreptococcus BL, Eubacterium limosum, Tissirella praeacuta, Bacteroides L, Fusobacterium mortiferum I, Fusobacterium naviforme, Clostridium innocuum, Clostridium ramosum, Propionibacterium acnes, Ruminococcus flavefaciens, Ruminococcus AT, Peptococcus AU-1, Bacteroides fragilis ssp. ovatus, -ssp. d, -ssp. f; Bacteroides L-1, L-5; Fusobacterium nucleatum, Fusobacterium mortiferum, Escherichia coli, Gemella morbillorum, Finegoldia magnus, Peptococcus G, —AU-2; Streptococcus intermedius, Ruminococcus lactaris, Ruminococcus CO Gemmiger X, Coprococcus BH, —CC; Eubacterium tenue, Eubacterium ramulus, Bacteroides clostridiiformis ssp. clostridliformis, Bacteroides coagulans, Prevotella oralis, Prevotella ruminicola, Odoribacter splanchnicus, Desuifomonas pigra, Lactobacillus G, Succinivibrio A, and a combination thereof.

Embodiment 45. The method of claim 4, wherein said fecal microbiota is further supplemented with bacterial spores.

Embodiment 46. The method of claim 45, wherein said bacterial spores are Clostridium spores or Bacillus spores.

Embodiment 47. The method of claim 4, wherein the preparation of said fecal microbiota involves a treatment selected from the group consisting of ethanol treatment, detergent treatment, heat treatment, irradiation, and sonication.

Embodiment 48. The method of claim 4, wherein the preparation of said fecal microbiota involves no treatment selected from the group consisting of ethanol treatment, detergent treatment, heat treatment, irradiation, and sonication.

Embodiment 49. The method of claim 4, wherein the preparation of said fecal microbiota involves a separation step selected from the group consisting of density gradients, filtration, and chromatography.

Embodiment 50. The method of claim 4, wherein the preparation of said fecal microbiota involves no separation step selected from the group consisting of density gradients, filtration, and chromatography.

Embodiment 51. The method of claim 4, wherein said fecal microbiota comprises a donor's entire fecal microbiota.

Embodiment 52. The method of claim 4, wherein said composition is substantially free of eukaryotic cells from said fecal microbiota's donor.

Embodiment 53. The method of claim 4, wherein said fecal microbiota is from reconstituted fecal material.

Embodiment 54. The method of claim 4, wherein said fecal microbiota is from synthetic fecal material.

Embodiment 55. The method of claim 4, wherein said fecal microbiota comprises no antibiotic resistant population.

Embodiment 56. The method of claim 4, wherein said fecal microbiota comprises a preparation of viable flora in proportional content that resembles a normal healthy human fecal flora.

Embodiment 57. The method of claim 4, wherein said fecal microbiota comprises bacteria from at least seven different families.

Embodiment 58. The method of claim 4, wherein said fecal microbiota has a Shannon Diversity Index of 0.4-5.0.

Embodiment 59. The method of claim 4, wherein said fecal microbiota comprises one or more microorganisms selected from the group consisting of Clostridium, Bacillus, Collinsella, Bacteroides, Eubacterium, Fusobacterium, Propionibacterium, Lactobacillus, Ruminococcus, Escherichia coli, Gemmiger, Desulfomonas, Peptostreptococcus, Bifidobacterium, and Monilia.

Embodiment 60. The method of claim 4, wherein said fecal microbiota comprises no viable Bacteroides, Fusobacterium, Propionibacterium, Lactobacillus, Ruminococcus, Escherichia coli, Gemmiger, Desulfomonas, Peptostreptococcus, Bifidobacterium, Monilia, or any combination thereof.

Embodiment 61. The method of claim 4, wherein said fecal microbiota comprises one or more microorganisms selected from the group consisting of a Bacteroides fragilis ssp. vulgatus, Collinsella aerofaciens, Bacteroides fragilis ssp. thetaiotaomicron, Peptostreptococcus productus II, Parabacteroides distasonis, Fusobacterium prausnitzii, Coprococcus eutactus, Collinsella aerofaciens III, Peptostreptococcus productus I, Ruminococcus bromii, Bifidobacterium adolescentis, Gemmiger formicilis, Bifidobacterium longum, Eubacterium siraeum, Ruminococcus torques, Eubacterium rectale, Eubacterium eligens, Bacteroides eggerthii, Clostridium leptum, Bacteroides fragilis ssp. A, Eubacterium biforme, Bifidobacterium infantis, Eubacterium rectale III-F, Coprococcus comes, Pseudoflavonifractor capillosus, Ruminococcus albus, Dorea formicigenerans, Eubacterium hallii, Eubacterium ventriosum I, Fusobacterium russi, Ruminococcus obeum, Eubacterium rectale, Clostridium ramosum, Lactobacillus leichmannii, Ruminococcus callidus, Butyrivibrio crossotus, Acidaminococcus fermentans, Eubacterium ventriosum, Bacteroides fragilis ssp. fragilis, Bacteroides AR, Coprococcus catus, Aerostipes hadrus, Eubacterium cylindroides, Eubacterium ruminantium, Eubacterium CH-1, Staphylococcus epidermidis, Peptostreptococcus BL, Eubacterium limosum, Tissirella praeacuta, Bacteroides L, Fusobacterium mortiferum I, Fusobacterium naviforme, Clostridium innocuum, Clostridium ramosum, Propionibacterium acnes, Ruminococcus flavefaciens, Ruminococcus AT, Peptococcus AU-1, Bacteroides fragilis ssp. ovatus, -ssp. d, -ssp. f; Bacteroides L-1, L-5; Fusobacterium nucleatum, Fusobacterium mortiferum, Escherichia coli, Gemella morbillorum, Finegoldia magnus, Peptococcus G, —AU-2; Streptococcus intermedius, Ruminococcus lactaris, Ruminococcus CO Gemmiger X, Coprococcus BH, —CC; Eubacterium tenue, Eubacterium ramulus, Bacteroides clostridiiformis ssp. clostridliformis, Bacteroides coagulans, Prevotella oralis, Prevotella ruminicola, Odoribacter splanchnicus, Desuifomonas pigra, Lactobacillus G, Succinivibrio A, and a combination thereof.

Embodiment 62. The method of claim 1, wherein said composition comprises at least about 20%, 30%, 40%, 50%, 60%, 70%, 80%, 85%, 90%, 95%, 99%, or 99.5% bacterial spores.

Embodiment 63. The method of claim 1, wherein said composition is in a liquid, frozen, freeze-dried, spray-dried, lyophilized, or powder form.

Embodiment 64. The method of claim 1, wherein said composition comprises an excipient, a saline, a buffer, a buffering agent, or a fluid-glucose-cellobiose agar (RGCA) media.

Embodiment 65. The method of claim 1, wherein said composition comprises a cryoprotectant.

Embodiment 66. The method of claim 65, wherein said cryoprotectant comprises polyethylene glycol, skim milk, erythritol, arabitol, sorbitol, glucose, fructose, alanine, glycine, proline, sucrose, lactose, ribose, trehalose, dimethyl sulfoxide (DMSO), glycerol, or a combination thereof.

Embodiment 67. The method of claim 1, wherein said composition further comprises an acid suppressant, an antacid, an H2 antagonist, a proton pump inhibitor or a combination thereof.

Embodiment 68. The method of claim 1, wherein said composition is substantially free of non-living matter.

Embodiment 69. The method of claim 1, wherein said composition is substantially free of acellular material selected from the group consisting of residual fiber, DNA, viral coat material, and non-viable material.

Embodiment 70. The method of claim 1, wherein said composition is formulated as an enteric coated capsule or microcapsule, an acid-resistant capsule or microcapsule, a powder suitable for reconstitution, a naso-duodenal infusion, or for delivery in the form of an enema or a colonoscopic infusion.

Embodiment 71. The method of claim 1, wherein said composition is administered together with a food, a liquid beverage, a food additive, a dairy-based product, a soy-based product or a derivative thereof, a jelly, or a yogurt.

Embodiment 72. The method of claim 1, wherein said subject is pretreated with an antibiotic prior to administration of said composition.

Embodiment 73. The method of claim 72, wherein said antibiotic is selected from the group consisting of rifabutin, clarithromycin, clofazimine, vancomycin, rifampicin, nitroimidazole, chloramphenicol, and a combination thereof.

Embodiment 74. The method of claim 72, wherein said antibiotic is selected from the group consisting of rifaximin, rifamycin derivative, rifampicin, rifabutin, rifapentine, rifalazil, bicozamycin, aminoglycoside, gentamycin, neomycin, streptomycin, paromomycin, verdamicin, mutamicin, sisomicin, netilmicin, retymicin, kanamycin, aztreonam, aztreonam macrolide, clarithromycin, dirithromycin, roxithromycin, telithromycin, azithromycin, bismuth subsalicylate, vancomycin, streptomycin, fidaxomicin, amikacin, arbekacin, neomycin, netilmicin, paromomycin, rhodostreptomycin, tobramycin, apramycin, and a combination thereof.

Embodiment 75. The method of any one of preceding claims, wherein said subject is pretreated with an anti-inflammatory drug prior to administration of said composition.

Embodiment 76. The method of any one of preceding claims, wherein said composition comprises non-pathogenic spores of one or more, two or more, three or more, or four or more Clostridium species selected from the group consisting of Clostridium absonum, Clostridium argentinense, Clostridium baratii, Clostridium botulinum, Clostridium cadaveris, Clostridium carnis, Clostridium celatum, Clostridium chauvoei, Clostridium clostridioforme, Clostridium cochlearium, Clostridium fallax, Clostridium felsineum, Clostridium ghonii, Clostridium glycolicum, Clostridium haemolyticum, Clostridium hastiforme, Clostridium histolyticum, Clostridium indolis, Clostridium irregulare, Clostridium limosum, Clostridium malenominatum, Clostridium novyi, Clostridium oroticum, Clostridium paraputrificum, Clostridium perfringens, Clostridium piliforme, Clostridium putrefaciens, Clostridium putrificum, Clostridium sardiniense, Clostridium sartagoforme, Clostridium scindens, Clostridium septicum, Clostridium sordellii, Clostridium sphenoides, Clostridium spiroforme, Clostridium sporogenes, Clostridium subterminale, Clostridium symbiosum, Clostridium tertium, Clostridium tetani, Clostridium welchii, and Clostridium villosum.

Embodiment 77. The method of claim 1, wherein said composition comprises purified, isolated, or cultured viable non-pathogenic Clostridium and a plurality of purified, isolated, or cultured viable non-pathogenic microorganisms from one or more genera selected from the group consisting of Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus.

Embodiment 78. The method of claim 1, wherein said composition comprises a plurality of purified, isolated, or cultured viable non-pathogenic microorganisms from one or more genera selected from the group consisting of Clostridium, Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus.

Embodiment 79. The method of claim 77, wherein said composition comprises two or more genera selected from the group consisting of Collinsella, Coprococcus, Dorea, Eubacterium, and Ruminococcus.

Embodiment 80. The method of claim 77, wherein said composition comprises two or more genera selected from the group consisting of Coprococcus, Dorea, Eubacterium, and Ruminococcus.

Embodiment 81. The method of claim 77 or 78, wherein said plurality of viable non-pathogenic microorganisms comprise one or more, two or more, three or more, four or more, or five or more species selected from the group consisting of Coprococcus catus, Coprococcus comes, Dorea longicatena, Eubacterium eligens, Eubacterium hadrum, Eubacterium hallii, Eubacterium rectale, and Ruminococcus torques.

Embodiment 82. The method of any one of preceding claims, wherein said method eliminates or reduces one or more recurrent diverticulitis symptoms selected from the group consisting of left lower quadrant pain, shifting bowel habits, nausea, vomiting, constipation, diarrhea, flatulence, and bloating, abscess, phlegmon, fistula, stricture, stenosis, obstruction, bleeding, and perforation.

Embodiment 83. The method of any one of preceding claims, wherein said method further comprises administering a 5-aminosalicylic acid agent, a corticosteroid, an immunosuppressant, or a combination thereof.

Embodiment 84. The method of any one of preceding claims, wherein said method further comprises administering 5-aminosalicylic acid or a derivative thereof, Sulfasalazine or a derivative thereof, or a combination thereof.

EXAMPLES Example 1 Preparation of Fecal Microbiota

Fecal microbiota is prepared essentially according to protocols published in US2014/0147417 or WO2014/152484. Summarized below is an exemplary protocol.

Potential fecal microbiota donors are screened according to a list of criteria used to exclude unsuitable donors. Potential fecal microbiota donors are excluded if they have received antibiotics, laxatives, diet pills, immunomodulators or chemotherapy in the preceding three months. Potential fecal microbiota donors are excluded if they have a history of all known infectious diseases, morbid obesity, diabetes, irritable bowel syndrome, inflammatory bowel disease, chronic diarrhea, constipation, colorectal polyps or cancer, a compromised immune system, metabolic syndromes, chronic fatigue syndrome, major GI surgery, or other diseases or conditions potentially associated with specific changes in fecal microbiota. Potential fecal microbiota donors are excluded if they exhibit positive laboratory tests for C-reactive protein, erythrocyte sedimentation rate, hepatitis A, hepatitis B, hepatitis C, human immunodeficiency virus, or syphilis. Potential fecal microbiota donors are excluded if they exhibit a positive test for stool ova or parasites. Potential fecal microbiota donors are excluded if they engage in high-risk sexual behaviors, have been incarcerated, or received any tattoos or body piercings in areas that have had disease epidemics within the past three months.

Donor fecal material (fresh feces) is collected in a sterilized container, then it is transferred to a blender. Approximately 500-1000 mL 0.9% saline solution is added to the blender and thoroughly mixed with the fecal sample. The resulting suspension is filtered at least 4 times through strainers prior to collecting a final suspension. The final suspension is centrifuged in 50 mL tubes at 1200×g for 3 minutes. The supernatant is discarded and the pellet is gently resuspended in approximately 50 mL of sterile 0.9% saline solution. The centrifugation and resuspension steps are repeated 2 to 4 additional times. Upon the final centrifugation, the supernatant is discarded. If the fecal microbiota is to be used immediately, the resultant pellet is resuspended in 1.5-volumes of 0.9% saline solution by gently mixing. If the fecal microbiota is to be stored, the resultant pellet is resuspended in 10% sterile glycerol and stored at −80 degrees Centigrade. If fecal microbiota are frozen, they are warmed to room temperature prior to administration to a patient. If fecal microbiota is lyophilized, the lyoprotectant formulation and lyophilization procedure follow essentially those described in US 2016/0331791, published Nov. 17, 2016.

Example 2 Treatment of Recurrent Diverticulitis with FMT

A first, 67 year old patient experienced high-frequency recurrent attacks of diverticulitis. At times, his recurrent attacks occurred on almost a monthly basis which resulted in frequent emergency room visits and intravenous administration of antibiotics. The attacks recurred despite him being on antibiotic prophylaxis, mesalamine therapy, or salazopyrin treatment. The patient eventually resorted to Fecal Microbiota Transplantation (FMT). He was given a five day infusion of liquid, homogenized fresh donor stool which was initially infused through a colonoscope and later via four enema infusions. At the 3-month check-up following the infusions, the patient reported no further attacks and at the twelve-month check-up, there was no recurrent attack of diverticulitis. At the last review five years after the FMT, he was free of any recurrent diverticulitis in spite of the fact that he continued to have what appeared to be quite extensive diverticular disease previously documented by colonoscopy and CT scan.

A second, 59-year-old female patient suffered from recurrent diverticulitis. On one occasion, she had developed a peri-diverticular abscess and had a prolonged stay in hospital. She was advised to have a colectomy of the area where the diverticulitis was present. The patient refused to undergo resection of sigmoid colon with diverticulae. She slowly recovered, became virtually asymptomatic, and left the hospital. However, in a short while, she continued to have relapsing attacks of diverticulitis taking her to hospital every few months. She was ultimately referred for assessment for prophylactic treatment. Various treatments were attempted with little success, including treatment for constipation using oral vancomycin, rifaximin to suppress bloating, laxatives, and olsalazine—all of which had previously been asserted to marginally reduce recurrent diverticulitis. Finally, the patient received Fecal Microbiota Transplantation and she underwent five infusions. The first infusion was done by colonosocpe and then by rectal infusion. She experienced no further attacks for three years. After three years, however, she suffered another attack of diverticulitis.

A third, 71-year-old female patient was referred by a surgeon for FMT because of recurrent diverticulitis. This patient was not well enough to undergo resection of her left colon due to other co-morbidities. The patient underwent a five day FMT infusion treatment with the initial infusion via a colonoscope and then with enemas of fresh donor stool homogenized to a liquid format. She then underwent ‘top up’ infusions every week for 4 weeks. Her recurrent diverticular disease resolved for three years at the time of follow up.

Example 3 Oral Capsule Treatment Protocol (Short Regimen) for Recurrent Diverticulitis

Patients are divided into four groups (Groups 1 to 4). Group 1 patients are administered a pre-treatment of antibiotics (e.g., Vancomycin, Metronidazole, and Colchicine) until the patient shows signs of improved bowel movements. Group 2 receives no antibiotics. Both Groups 1 and 2 receive a pre-colonoscopy bowel prep followed by capsule FMT. Groups 3 and 4 receive no bowel prep while Group 3, not group 4, also receive an antibiotic pretreatment. Capsules are administered for 2 weeks as follows: two capsules (each containing 10⁹ to 10¹¹ bacterial organisms), given twice-a-day for 4 days, two capsules twice-a-day every other day for 10 days. High dose capsules (total cell count of about 10¹²) are used in loading doses (also called treatment doses) for the initial 4 days. Lower dose capsules (total cell count of about 10⁹) are used in maintenance doses for the subsequent 10 days. In patients receiving antibiotic pretreatment, capsules are administered one day after ceasing antibiotics. Patient symptoms are observed and clinical examination is performed before, during and post oral capsule treatment. Pre, during and post-treatment DNA metagenomics (2-4 days; 1 week; 6 weeks; 12 weeks) are also carried out.

Example 4 Oral Capsule Treatment Protocol (Long Regimen) for Recurrent Diverticulitis

Patients are divided into four groups (Groups 1 to 4). Group 1 patients are administered a pre-treatment of antibiotics (e.g., Vancomycin, Metronidazole, and Colchicine if constipation is an issue) until the patient shows signs of improved bowel movements. Group 2 receives no antibiotics. Both Groups 1 and 2 receive a pre-colonoscopy bowel prep followed by capsule FMT. Groups 3 and 4 receive no bowel prep while Group 3, not group 4, also receive an antibiotic pretreatment. Capsules are administered for 18 weeks or more, as follows: two capsules twice-a-day for 14 days, two capsules twice-a-day every other day for 14 days, 4 capsules twice-a-week for 14 days, and 4 capsules once-a-week (e.g., each Monday) for 12 weeks. High dose capsules (total cell count of about 10¹²) are used in loading doses (also called treatment doses) for the initial 4 weeks. Lower dose capsules (total cell count of about 10⁹) are used in maintenance doses for the subsequent 14 weeks. In patients receiving antibiotic pretreatment, capsules are administered one day after ceasing antibiotics. Patient symptoms are observed and clinical examination is performed before, during and post oral capsule treatment. Pre, during and post-treatment DNA metagenomics (2-4 days; 1 week; 6 weeks; 12 weeks) are also carried out.

As various modifications could be made in the constructions and methods herein described and illustrated without departing from the scope of the disclosure, it is intended that all matter contained in the foregoing description shall be interpreted as illustrative rather than limiting. The breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims appended hereto and their equivalents. All patent and non-patent documents cited in this specification are incorporated herein by reference in their entirety. 

The invention claimed is:
 1. A method for treating recurrent diverticulitis in a subject in need thereof, said method comprising administering to said subject a pharmaceutically active dose of a therapeutic composition comprising a community of live non-pathogenic fecal bacteria derived from a stool of a healthy human donor, wherein said treating alleviates at least one symptom of said recurrent diverticulitis for at least 3 months.
 2. The method of claim 1, wherein said recurrent diverticulitis is at a clinical stage selected from the group consisting of Stages I to IV.
 3. The method of claim 1, wherein said composition comprises a non-selected fecal microbiota.
 4. The method of claim 1, wherein said dose is administered at least once daily for at least 2 weeks.
 5. The method of claim 1, wherein said dose is administered at least twice weekly for at least 2 weeks.
 6. The method of claim 1, wherein said dose is administered at least twice weekly for at least 4 weeks.
 7. The method of claim 1, wherein said dose is administered at least twice weekly for at least 8 weeks.
 8. The method of claim 1, wherein said dose is administered at least three times weekly for at least 4 weeks.
 9. The method of claim 1, wherein said therapeutic composition comprises both live nonpathogenic fecal bacteria and a non-cellular fecal filtrate.
 10. The method of claim 1, wherein said method comprises a first dosing schedule followed by a second dosing schedule, wherein said second dosing schedule comprises a maintenance dose lower or equal to the dose of said first dosing schedule.
 11. The method of claim 1, wherein said composition is formulated as a delayed or gradual enteric release form.
 12. The method of claim 1, wherein said composition is formulated as an enteric coated capsule or an acid-resistant capsule.
 13. The method of claim 1, wherein said pharmaceutically active dose is from 10⁸ to 10¹⁴ cfu or total number of cells.
 14. The method of claim 3, wherein said fecal microbiota comprises a donor's entire fecal microbiota.
 15. The method of claim 1, wherein said composition is in a liquid, frozen, freeze-dried, spray-dried, lyophilized, or powder form.
 16. The method of claim 1, wherein said composition comprises a cryoprotectant selected from the group consisting of polyethylene glycol, skim milk, erythritol, arabitol, sorbitol, glucose, fructose, alanine, glycine, proline, sucrose, lactose, ribose, trehalose, dimethyl sulfoxide (DMSO), glycerol, or a combination thereof.
 17. The method of claim 1, wherein said composition is substantially free of non-living matter.
 18. The method of claim 1, wherein said subject is pretreated with an antibiotic prior to administration of said composition.
 19. The method of claim 1, wherein said at least one symptom of said recurrent diverticulitis is selected from the group consisting of left lower quadrant pain, shifting bowel habits, nausea, vomiting, constipation, diarrhea, flatulence, and bloating, abscess, phlegmon, fistula, stricture, stenosis, obstruction, bleeding, and perforation.
 20. The method of claim 1, wherein said method further comprises administering a 5-aminosalicylic acid agent, a corticosteroid, an immunosuppressant, or a combination thereof. 